Navigation system for a marine vessel in low light conditions

Television – Special applications – Navigation

Patent

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Details

348148, H04N 718

Patent

active

060578807

ABSTRACT:
An aid for marine navigation includes a low-light video camera mounted within a weather-proof enclosure on a vantage point of a marine vessel for improved night vision. A conventional video camera is also mounted with the low-light video camera for daytime viewing. Video signals from the cameras are automatically selected depending on light conditions for transmission to a cabin of the vessel. Motors rotate the housing in a horizontal plane and in a vertical plane for enabling remote-controlled aiming of the cameras from the helm of the marine vessel. Sensors provide information on azimuth and elevation of the cameras for overlaying the video signal transmitted from the camera housing with this information for display with the video image on a monitor near the helm. Information on longitude and latitude, as well as vessel velocity and direction, from a global satellite positioning system receiver is also displayed. The overlayed video signal is RF modulated on to a predetermined channel for distribution to television receivers in other locations on the vessel.

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